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首页> 外文期刊>International Journal of Heat and Mass Transfer >Determination of thermal contact conductance between thin metal sheets of battery tabs
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Determination of thermal contact conductance between thin metal sheets of battery tabs

机译：电池接线片薄金属片之间的热接触传导率的测定

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摘要

A novel method combining experimental test and heat transfer modeling was developed to determine the thermal contact conductance (TCC) between thin metal sheets as a function of contact pressures. In the experiment, thin metal samples were sandwiched between one white light transparent and one infrared (IR) transparent glass disks pressed together under different pressure levels. The metal stack was then heated up from the white light transparent side by an intense short pulse of flash light. The temperature transient on the other side was measured by an IR camera. To obtain a value of TCC, two separate experiments having different layers of thin sheet materials were performed and the values of maximum temperature rise were measured. Numerical heat transfer modeling was used to calculate the temperature evolution in the stack-up comprised of metal layers sandwiched between two glass disks. The heat transfer calculation results showed that TCC had a strong correlation to the ratio of maximum temperature rise between the two experiment configurations, but it was insensitive to the variations of other thermal properties. Thus, for a given pair of metal sheets in contact, a unique correlation between the TCC and the ratio of temperature rise was established using the heat transfer calculation. Such correlation allows the direct determination of the TCC value from the ratio of the experimentally measured temperature rise. The TCC between three types of thin metal sheets (i.e., 0.2-mm-thick Al, 0.2-mm-thick Cu and 0.9-mm-thick Cu) were measured and compared with the available literature data.
机译：开发了一种结合实验测试和热传递模型的新颖方法，以确定薄金属板之间的热接触电导（TCC）作为接触压力的函数。在实验中，将薄金属样品夹在一张在不同压力水平下压在一起的白色透光玻璃和一张红外透明玻璃盘之间。然后通过强烈的短脉冲闪光灯从白光透明面加热金属叠层。另一侧的温度瞬变通过IR相机测量。为了获得TCC值，进行了两个具有不同薄片材料层的单独实验，并测量了最大温度升高值。数值传热模型用于计算由两层玻璃盘之间夹着的金属层组成的叠层中的温度演变。传热计算结果表明，TCC与两个实验配置之间的最大温升比具有很强的相关性，但对其他热特性的变化不敏感。因此，对于给定的一对接触的金属板，使用传热计算建立了TCC与温升比之间的唯一相关性。这种相关性使得可以根据实验测量的温升比直接确定TCC值。测量了三种类型的薄金属板（即0.2毫米厚的铝，0.2毫米厚的铜和0.9毫米厚的铜）之间的TCC，并将其与现有文献数据进行了比较。

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  • 作者

    Jian Chen; Wei Zhang; Zhili Feng; Wayne Cai;

  • 作者单位

    Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA;

    Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA,Materials Science and Engineering, The Ohio State University, 1248 Arthur Adams Drive, Columbus, OH 43221,USA;

    Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA;

    Advanced Propulsion Manufacturing Research Group, Manufacturing Systems Research Lab, GM Global R&D, Mail Code: 480-106-224. 30500 Mound Rd, Warren. MI 48090-9055, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Thermal contact conductance; Thin metal sheets; Pulsed heating; Infrared thermography;

    机译：热接触电导;薄金属板;脉冲加热;红外热成像;

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